Product comparison · 2 data projectors

Acer PD727 4000 ANSI lumens DLP XGA (1024x768) vs Viewsonic PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768)

23specifications compared
15differ
8identical
22known for one product only

Key differences

Projector brightness
- PD727 4000 ANSI lumens DLP XGA (1024x768):4000 ANSI lumens
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):2500 ANSI lumens
Projection technology
- PD727 4000 ANSI lumens DLP XGA (1024x768):DLP
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):LCD
Contrast ratio (typical)
- PD727 4000 ANSI lumens DLP XGA (1024x768):2000:1
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):600:1
Projection distance
- PD727 4000 ANSI lumens DLP XGA (1024x768):1.2 - 12.2 m
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):1 - 10 m
Keystone correction, vertical
- PD727 4000 ANSI lumens DLP XGA (1024x768):±16°
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):32°
Service life of light source
- PD727 4000 ANSI lumens DLP XGA (1024x768):2000 h
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):3000 h
Lamp power
- PD727 4000 ANSI lumens DLP XGA (1024x768):300 W
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):205 W
VGA (D-Sub) ports quantity
- PD727 4000 ANSI lumens DLP XGA (1024x768):1
- PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768):2

Side by side

Differences highlightedShow differences only

Comparison of PD727, PJ678
45 specifications	A Acer PD727 4000 ANSI lumens DLP XGA (1024x768) Model PD727 View product	B Viewsonic PJ678 data projector 2500 ANSI lumens LCD XGA (1024x768) Model PJ678 View product
Projector5 differ
Projector brightnessDiffers	4000 ANSI lumens	2500 ANSI lumens
Projection technologyDiffers	DLP	LCD
Contrast ratio (typical)Differs	2000:1	600:1
Screen size compatibilityKnown for one	Unknown — not stated by the source	711.2 - 8407.4 mm (28 - 331")
Projection distanceDiffers	1.2 - 12.2 m	1 - 10 m
Keystone correction, verticalDiffers	±16°	32°
Matrix sizeKnown for one	Unknown — not stated by the source	1.6 cm (0.63")
Horizontal scan rangeKnown for one	15 - 100 kHz	Unknown — not stated by the source
Vertical scan rangeKnown for one	50 - 85 Hz	Unknown — not stated by the source
Keystone correction, horizontalKnown for one	±16°	Unknown — not stated by the source
Light source2 differ
Service life of light sourceDiffers	2000 h	3000 h
Lamp powerDiffers	300 W	205 W
Lamp typeKnown for one	P-VIP	Unknown — not stated by the source
Lens systemidentical
FocusKnown for one	Unknown — not stated by the source	Manual
Focal length rangeKnown for one	Unknown — not stated by the source	18.85 - 22.23 mm
Videoidentical
Analog signal format systemKnown for one	Unknown — not stated by the source	NTSC 4.43, NTSC M, PAL, SECAM
Ports & interfaces2 differ
VGA (D-Sub) ports quantityDiffers	1	2
Component video (YPbPr/YCbCr) inDiffers	1	3
Audio (L/R) outKnown for one	Unknown — not stated by the source	1
HDMI ports quantityKnown for one	1	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
Features1 differ
Noise levelDiffers	30 dB	34 dB
CertificationKnown for one	Unknown — not stated by the source	CE, CB, FCC-B, CCC, TÜV-GS, WEEE, RoHS
Multimedia1 differ
Number of built-in speakersDiffers	2	1
RMS rated powerKnown for one	Unknown — not stated by the source	2 W
Design1 differ
Market positioningDiffers	Presentation	Portable
Power1 differ
Power consumption (typical)Differs	385 W	280 W
Power consumption (standby)Known for one	10 W	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 40 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Weight & dimensions1 differ
WeightDiffers	4 kg	3.1 kg
Package weightKnown for one	Unknown — not stated by the source	4.1 kg
Other features1 differ
Package dimensions (WxDxH)Known for one	Unknown — not stated by the source	360 x 220 x 310 mm
Connectivity technologyKnown for one	Unknown — not stated by the source	Wired
Dimensions (WxDxH)Differs	350 x 282 x 119 mm	298 x 224 x 84 mm
Lens focal rangeKnown for one	Unknown — not stated by the source	1.75 - 1.9
Power requirementsKnown for one	Unknown — not stated by the source	AC 100 - 120/200 - 240V, 50/60Hz

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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